Hi there, I just bought my psp yesterday. My battery info shows that charge level is 0% and shows battery power left -.Orange light is on for like 5 minutes when i plugged in the current and turn to green after that showing battery status charge complete . If I play it from the AC adapter everything works fine, but as soon as I take the adapter out the psp doesn't want to play/ turn on and shows that my battery is low and needed to be charged. What is the problem? Thanks a bunch!

first hand. brand new.